MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
Order this document
by MC68HC11KA4TS/D
M68HC11 KA Series
Technical Summary
8-Bit Microcontroller
1 Introduction
The MC68HC11KA4 family of microcontrollers are enhanced derivatives of the MC68HC11F1 and, as
shown in the block diagram, include many additional features. The family includes the MC68HC11KA0,
MC68HC11KA1, MC68HC11KA3, MC68HC11KA4, MC68HC711KA4, MC68HC11KA2, and the
MC68HC711KA2. These MCUs, with a non-multiplexed expanded bus, are characterized by high
speed and low power consumption. The fully static design allows operation at frequencies from 4 MHz
to dc.
This technical summary contains information concerning standard, custom-ROM, and extended-volt-
age devices. Standard devices are those with disabled ROM (MC68HC11KA1), disabled EEPROM
(MC68HC11KA0), and EPROM replacing ROM (MC68HC711KA4). The MC68HC11KA2 and
MC68HC711KA2 contain 32 Kbytes of ROM/EPROM instead of 24 Kbytes. Custom-ROM devices have
a ROM array that is programmed at the factory to customer specifications. Extended-voltage devices
are guaranteed to operate over a much greater voltage range (3.0 Vdc to 5.5 Vdc) at lower frequencies
than the standard devices. Refer to the ordering information on the following pages.
In this summary, ROM/EPROM refers to ROM for ROM-based devices and refers to EPROM for
EPROM-based devices.
1.1 Features
• M68HC11 Central Processing Unit (CPU)
• Power Saving STOP and WAIT Modes
• 768 Bytes RAM in MC68HC11KA4, 1024 Bytes RAM in MC68HC11KA2 (Saved During Standby)
• 640 Bytes Electrically Erasable Programmable ROM (EEPROM)
• 24 Kbytes ROM/EPROM, 32 Kbytes ROM/EPROM in MC68HC11KA2
• PROG Mode Allows Use of Standard EPROM Programmer (27256 Footprint)
• Non-multiplexed Address and Data Buses
• Enhanced 16-Bit Timer with Four-Stage Programmable Prescaler
— Three Input Capture (IC) Channels
— Four Output Compare (OC) Channels
— One Additional Channel, Selectable as Fourth IC or Fifth OC
• 8-Bit Pulse Accumulator
• Four 8-Bit or Two 16-Bit Pulse-Width Modulation (PWM) Timer Channels
• Real-Time Interrupt Circuit
• Computer Operating Properly (COP) Watchdog
• Enhanced Asynchronous Nonreturn to Zero (NRZ) Serial Communications Interface (SCI)
• Enhanced Synchronous Serial Peripheral Interface (SPI)
• Eight-Channel 8-Bit Analog-to-Digital (A/D) Converter (Four Channels on 64-Pin Version)
• Seven Bidirectional Input/Output (I/O) Ports (43 Pins)
• One Fixed Input-Only Port (8 Pins, 4 Pins on 64-Pin Version)
• Available in 68-Pin Plastic Leaded Chip Carrier (Custom ROM/OTPROM), 68-Pin Windowed Ce-
ramic Leaded Chip Carrier (EPROM), or 64-Pin Quad Flat Pack (Custom ROM/OTPROM)
This document contains information on a new product. Specifications and information herein are subject to change without notice.
© MOTOROLA INC., 1996
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